Liberal spokesman on Primary Industries Jeremy Rockliff has detailed a $37 million package for agriculture in Tasmania.

Jeremy Rockliff says the bulk of the money, $30 million, will go towards new irrigation schemes in the state.

The promised money matches the amount already announced by Premier Lara Giddings.

Jeremy Rockliff says a half a million dollars will go towards enhancing the older irrigation schemes and see whether they can be expanded.

The opposition policy also focuses on the Primary Industry Activities Protection Act 1995, which establishes at law the right of a farmer to continue their farming activities without unnecessary interference.